Fbanklin taylob



(No Model.)

I'. TAYLOR.`

GDMPOSITE ROLLER.

No. 329,099. lr/'ltented 009727, 1885.

WITNESSFSv INVENTOR n Pneus rms-umm. um n.4:

l NITED STATES PATENT OFFICE,

FRANKLIN TAYLOR, OF WILMINGTON, DELAWARE, ASSIGNOR TO THE VULOANIZED FIBRE COMPANY, OF SAME PLACE.

COMPOSITE ROLLER.

SPECIFICATION forming part of Letters Patent No. 329,099,dated October 27, 1885.

Application filed March 17, 1885. Serial No. 159,245.

To all whom it may concern:

Be it known that I, FRANKLIN TAYLOR, of Wilmington, New Castle county, Delaware, have invented an Improved Composite Roller, of which the following is a specification.

Rollers made of vulcanized fiber have now quite an extensive use in mechanics-as fric-p tion-wheels for transmitting power, for forming anti-friction Wheelbearings, and for other purposes.

The object of my present invention is to provide a roller having a seamless rim of vulcanized fiber, a body of some suitable plastic material, and a bearing hub. Rollers thus made are light, cheap, and durable, and possess many of the characteristics of a solid vulcanized-ber roller. Their elasticity depends more or less upon the character of the filling.

In the accompanying drawings, Figure l is a sectional view of avery simple form of press for carrying out my invention, showing the improved roller in section; and Figs. 2 and 3 are views of completed rollers.

Referring to Fig. l, A is the bedplate of the press; B, the bottom face of the die, which is seated in a recess in the bed-plate. C is the plunger of the die, and D is a removable ring which forms the sides of the die. The lower portion of this ring is of the saine diameter as the bottom face, B, of the die, over which it fits. The upper part of the die is of less diameter, and the plunger works snugly in it. The shoulder d, formed within the ring, overlaps the vulcanized-fiber rim of the pulley when it is placed in position in the die. The vulcanized-fiber rim is formed from a circular blank and is perfectly solid, presenting no seam whatever on its periphery.

A pin or spud, E, seated centrally in a recess in the bottom face, B, of the die holds the central hub or bearing piece, F, which is also, preferably, of vulcanized fiber, but may be of any other suitable material, and extends upwardly into aA central socket in the plunger when the plunger is forced down.

The shoulder d in the ring prevents the plastic material, as the plu nger descends, from being compressed against the edge of the vulcanized-fiber rim. For the purpose of preventing the material from being compressed (No model.)

against the end or face of the hub-piece F, I employ a'removable core, G, which is of the same cross-section as the hub-piece F, and may be of iron or any suitable material. This core is placed on the pin or spud over the hub F, and fits within the central socket in Vthe plunger.

When the vulcanized-fiber rim and hub are placed in position within the die, as illustrated in the drawings, and the core is placed on the pin above the hub, and the plunger raised, the plastic material of which the body of the hub is to be formed-as, for instance, ordinary paper-pulp, either alone or mixed with a little glue, or sawdust mixed with glue or other suitable plastic material-is deposited in the die, and descending between the ring and the core fills up the space between the vulcanizedber rim and hub, and fills or partly lls the space between the ring and the core G. When the plunger descends, the material will then be guided under pressure directly between the rim and hub, where it will be firmly pressed into shape.

The pressure required in forming such a wheel is comparatively small, and there is therefore little, if any, expansion of the vulcanized-fiber rim. When the plunger has been raised, the die-ring D may therefore be lifted off the wheel, and the core G being removed the spud may be drawn from the hub and the wheel lifted from the bottom face of the die. The parts all being kept properly oiled there is no danger of sticking. The wheel is then completed by drying. Where a'pressure, however, sufficient to materially expand the rim and contract the hub is employed, the die-ring D may be formed in two parts-that is, the shoulder d may be formed by a separate removable ring instead of by an offset, as shown in the drawings. In that event the ring with the wheel may be lifted from the bed-plate, the inner smaller ring just referred to removed from the die-ring, and the wheel punched out. The central pin or spud may then be punched out of the bearing.

No claim is made herein to the :manner of making this wheel, nor to the apparatus, as both may, of course, be varied..

In Fig. 2 the bearing-hub of the wheel is IOO circular in cross-section, and in Fig. 3, triangular; or it may be of any other desired crosssection.

I am aware that car-wheels have been made with metal rims and hubs and an interposed plastic materialas shown, for instance, in the patent of Smith, No. 239,99l-and I do not claim such broad ground; nor do I claim, broadly, a roller having a face or periphery of vulcanized ber, as a patent has already been granted to me for a roller formed entirely of vulcanized ber.

I claim as my nvention- A A composite roller having a rim formed of a seamless ring,` of vulcanized fiber, a central i 5 bearing-hub of suitable material, and a body of some suitable plastic material compressed between the rim` and hub, as set forth. Y

In testimony whereof I have hereunto subscribed my name.

FRANKLIN TAYLOR. Vitnesses;

E. M. TAYLOR, W. P. WEBB. 

